<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<table border="1">
    <tr>
        <td colspan="2" align="center">1-1</td>
    </tr>
    <tr>
        <td>2-1</td><td rowspan="3">2-2</td>
    </tr>
    <tr>
        <td>3-1</td>
    </tr>
</table>

</body>
</html>